Anti-friction journal-bearing



(No Model.)

H. M. JOHNSON. ANTI-FRICTION JOURNAL BEARING.

No. 402,599. a [Patented Ma'y'7, 1889.

UNITED STATES PATENT QEFICE.

HARLEY M. JOHNSON, OF OHIOAGO, I-LLINOIS.

ANTI-FRICTION JOURNAL-BEARING.

SPECIFICATION forming part of Letters Patent N 0. 402,599, dated May '7, 1889. Application filed March 21, 1888. fierial N30. 267,947. (No model.)

To all 1071 0111, it may concern.-

Be it known that I, HARLEY M. JOHNSON, a 'citizenof the United States, residing at Chicago, in the county of Cook and Stateof Illinois, have invented certain new and useful Improvements in Anti-Friction Journal-Bearings, of which the followingis a specification, to wit: 1 This invention relates to an improvement in anti-friction journal-bearings; and it 0011- sists in certain peculiarities of the construction and arrangement of the same, substantially as will be hereinafter more fully set forth and claimed.

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe its Construction and arrangement, referring to the accompanying drawings, in which- Figure 1 is a central longitudinal section of my device. Fig; 2 is a cross-section on the line 00 as, Fig. 1; and Fig. 3 is across-section on the line y y, same figure.

or represents the frame or casing in which the whole j ournal-bearing is inclosed, and may of course be of any form suitable to the work to be done and the position it is to occupy. In the present instance it is shown as a caraxle box. The axle or shaftb is, passed into the casing, and around the journal are arranged a series of anti friction rollers, b, which bear upon the journal all the time. The ends of these rollers are shouldered or turned down, as at W, and enter recesses in a circular boxing, c, at each end, and each of these roller-journals is also provided with a series of very small rollers, 0', arranged around it and filling the space between the large roller and the recesses in the boxing. This will be well shown in Fig. 2, where the face of the boxing is removed to fully show the small rollers. The two circularboxes in which the large rollers are journaled are secured together by longitudinal braces or bars d, secured by nuts c Zf on their ends, as in the drawings. The main body of these bars may be of any form in cross-section but I preferthe triangular form herein shown, as giving a firmer shoulder against the circular boxes 0 and holding them with more rigidity and lessliability of the Whole bearing being twisted in grooves 6 and between the axle and projection are placed two, three, or more small Wheels, e which are held on radial studs of the spindle, and serve to take the end-thrust of the axle or shaft without friction.

It will be at once understood that this device is well adapted to any position or purpose without material change, and that as the shaft revolves the rollers revolve also, and

without slip or friction, as their revolution amounts simply to a travel across the curved face of the brass or hearing, and as the journals of these rollers are held in the circular boxes, they are not only separated and kept from contact with each other, but they are also provided with roller-journals, and the friction is thus reduced to the last degree. No strain is borne upon these small rollers, and the bearing is thus strong and not liable to get out of repair. The end-thrust of the shaft is readily taken by the small friction-wheels on the recessed spindle, and no friction or grinding of the parts can occur. The edge form, size, and number of these wheels will be changed as deemed advisable in particular cases; but the principle here shown will not be departed from.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a roller-bearing, the combination, with a series of large rollers for engaging the shaft, journaled in suitable revolving circular boxes, of a series of small rollers placed in these boxes around each of large roller-journals, substantially as and for the purpose set forth.

2. The combination, with a journal box or casing provided with a socketed projection on its inner side and a shaft in linetherewith, and also formed with a longitudinal socket,

the ends of both the shaft and projections bein g provided with concentric grooves, of a spindle with projecting bearings socketed loosely in said parts, and a series of anti-frietion wheels on said spindle running in said grooves, substantially as and for the purpose set forth.

3, The combination, with a shaft having its ends formed with a concentric groove, and a projection 011 the journal box or casing with a circular groove aligned with the shaft, of a series of small friction-Wheels placed between the shaft and projection and running in said grooves, substantially as and for the purpose set forth.

4., In a journal-bearing, the combination, with a casing having a socketed projection formed with a circular groove in its face, and a shaft also formed with a socket and groove, of a series of rollers arranged around the shaft, each of which is also provided with a roller-journal at each end in a revolving circular boxing, and a loose spindle with projecting bearings socketed in the shaft and the box projection and provided with a series of small wheels to take the end-thrust, substantially as shown, and for the purpose set forth. In testimony whereof I aflix my signature in presence of two witnesses.

HARLEY M. JOHNSON. Vitnesses:

W. O. MCARTHUR, W. S. MCARTHUR. 

